package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.common.vo.MemberRespVo;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登陆请求
 */
@Slf4j
@Controller
public class OAuth2Controller {
    @Autowired
    MemberFeignService memberFeignService;

    /**
     * 社交登录成功回调
     * @param code
     * @return
     * @throws Exception
     */
    @GetMapping(value = "/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session, HttpServletResponse servletResponse) throws Exception {

        Map<String,String> map = new HashMap<>();
        map.put("client_id","3759367633");
        map.put("client_secret","9ad0937e2d31d18fd07b8c5a8dab99c8");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code",code);
        //1、根据code换取accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com/", "/oauth2/access_token", "post",new HashMap<>(), map, new HashMap<>());
        System.out.println(response);
        //2、处理
        if (response.getStatusLine().getStatusCode() == 200){
            //获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json,SocialUser.class);


            //知道是哪个社交用户
            //1)、当前用户如果塞第一次进网站，制动注册进来（为当前用户生成一个会员信息账号，以后这个社交账号就对应指定会员）
            //    登陆或者注册这个社交用户
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if (oauthlogin.getCode() == 0){
                MemberRespVo data = oauthlogin.getData("data", new TypeReference<MemberRespVo>() {
                });
                System.out.println("登陆成功，用户信息为："+data);
                log.info("登陆成功：用户：{}",data.toString());
                //1、第一次使用session;命令浏览器保存卡号。JSESSIONID这个cookie;
                //以后浏览器访问哪个网站就会帶上这个网站的cookie;
                //子域之间; gulimall.com auth. gul imall.com order. gul imall. com
                //发卡的时候(指定域名为父域名)，即使是子域系统发的卡，也能让父域直接使用。
                //TODO 1、默认发的令牌。session=dsajkdjl. 作用域:当前域; (解决子域session共享 问题)
                //TODO 2、使用JSON的序列化方式来序列化对象数据到redis中
                session.setAttribute("loginUser",data);
                //new Cookie("JSESSIONID","dadaa").setDomain("");
                //servletResponse.addCookie();

                //2、登陆成功跳回首页
                return "redirect:http://gulimall.com";
            }else {

                System.out.println("登陆失败1");
                return "redirect:http://auth.gulimall.com/login.html";
            }


        }else {
            System.out.println("登陆失败2");
            System.out.println(response.getStatusLine().getStatusCode());
            return "redirect:http://auth.gulimall.com/login.html";
        }


        //2、登陆成功跳回首页  redirect:http://auth.gulimall.com/login.html

    }

}
